I TRIED MY ISONIC 101 FOR THE FIRST TIME THIS WEEKEND. I USED MY RS SLALOM 6.2 AND 34 CM FIN SUPPLIED WITH THE BOARD. I WEIGH 72 KG AND IT WAS BLOWING A FORCE 5 BUT WHEN I PICKED UP SOME REAL SPEED THE FIN WOULD JUST NOT STOP WHISTLING. IT WAS VERY ENNOYING LISTENING TO IT FOR THE BEST PART OF THE 2 HRS I WAS OUT THERE. - HELP.